This geth weapon fires a rapid stream of high-energy phasic slugs. Comparable to a Vindicator Battle Rifle. Very effective against shields and biotic barriers; moderately effective against armor.
Geth pulse rifles are rarely retrieved from the battlefield; when they are, the guns are generally functional and comparable to a stock assault rifle. Over time, however, they prove unreliable and difficult to repair. Attempts to replicate this weapon have failed, but the technology recovered from Haestrom could enable several of these weapon to be built for your squad.
Two anomalies differentiate these geth weapons from other stock assault rifles. First, the mass effect field generation technology follows a sine curve (it has a variable rate of fire). Second, its slugs are lighter than standard Avenger slugs, but they're encased in a phasic envelope. Overall, this weapon should be more effective against shields and barrier than a battle rifle, but will likely have less armor penetration

The M-8 Avenger is acquired during the mission to recruit Tali. It is found in the room Tali is in, directly after defeating the Geth Colousus. Initially, the Soldier class has access to the Geth Pulse Rifle. It is possible for other classes to use the Geth Pulse Rifle if they select the Assault Rifle Specialization during the Collector Cruiser mission.

The Geth Pulse Rifle is only available when playing on either the Hardcore or Insanity difficulty.